
U.S. Commerce Dept. @CommerceGov
RT @HHSGov Contact tracing – a core disease control measure used by health department personnel for decades – is a key strategy for preventing further spread of #COVID19. Learn more from @CDCgov's guidance on contact tracing: https://t.co/NpUoz69BZh https://t.co/VJawEoj0fJ — PolitiTweet.org